I know this post is 5 months old and I hope your boy is doing much better by now! But I just wanted to share for anyone else in this situation reading this, my lil guy, Cupid, fell 6ft off a wall onto concrete (being too adventurous?) and was paralyzed from the waist down. I had to express his bladder for a few weeks and vets said he'd never walk again but he did! He was running four weeks later! But now that he's older he is feeling the effects of his previous injury. He's 14 and getting his first wheels!